2222161133250 has 32 divisors (see below), whose sum is σ = 5546514190464. Its totient is φ = 592576302000.

The previous prime is 2222161133221. The next prime is 2222161133267. The reversal of 2222161133250 is 523311612222.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1481440006 + ... + 1481441505.

It is an arithmetic number, because the mean of its divisors is an integer number (173328568452).

Almost surely, 2^{2222161133250} is an apocalyptic number.

2222161133250 is an abundant number, since it is smaller than the sum of its proper divisors (3324353057214).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2222161133250 is a wasteful number, since it uses less digits than its factorization.

2222161133250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2962881531 (or 2962881521 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 2222161133250 its reverse (523311612222), we get a palindrome (2745472745472).

The spelling of 2222161133250 in words is "two trillion, two hundred twenty-two billion, one hundred sixty-one million, one hundred thirty-three thousand, two hundred fifty".